About the combined role of texture and grain size on hardening behavior of cp titanium sheets

18th International Conference on Textures of Materials

材料科学;物理学

Wagner, F.^1,2 ; Richeton, T.^1,2 ; Chen, C.^1,3 ; Toth, L.S.^1,2

Labex DAMAS, Université de Loraine, France^1

LEM3 CNRS (UMR 7239), Université de Lorraine, Metz, France^2

Nanjing University of Science and Technology, China^3

关键词: Commercially Pure titaniums;    Crystal plasticity;    Crystallographic textures;    Grain size distribution;    Grain size effect;    Hardening behavior;    Mean-grain size;    Tensile curve;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/375/1/012005/pdf
DOI  :  10.1088/1757-899X/375/1/012005

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The goal of the study is to analyze the role of both the grain size distribution and the crystallographic texture on the plastic deformation. Data consist, on one hand, in tensile curves obtained for commercially pure titanium samples elaborated to correspond at several mean grain sizes and textures. Data consist, on the other hand, in calculated tensile curves using a crystal plasticity EVPSC model modified to include grain size effects. The trend for the yield stresses and the initial plateaus are satisfying showing that the effects of grain size are captured in the model. Under the conditions used in the model the hardening is however not enough grain size dependent when compared with experiments.